Frankly I don't get purpose of this article. Guy wrote some software with clear expectation of money and released it for free. Fine - bad pick of distribution model - it happens.

Then he writes article, stating that you shouldn't be ashamed to ask for money. To whom it's directed? All OSS developers? Including developers of electron (one of his dependencies), which then has tens or hundreds of packages in its dependency tree? What would happen to his browser if they all wanted dollar/month for use?

If you want to code for money - do paid product. That's OK. No reason to build philosophy around being entitled to payment because you have github stars.